RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4548 locations in the last 30 days (4695 reports) · Last sighting yesterday

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

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Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/10/20263200 W 83RD PLAshburn18Completed8 daysPhone CallCity 311
8/10/20265048 W WINDSOR AVEPortage Park45Completed15 daysMobile DeviceCity 311
8/10/20262641 W GREGORY STLincoln Square40Completed11 daysInternetCity 311
8/10/20265310 S WINCHESTER AVENew City16Completed11 daysAlderman's OfficeCity 311
8/10/20262653 W GREGORY STLincoln Square40Completed11 daysInternetCity 311
8/10/20265219 N CHRISTIANA AVENorth Park39Completed10 daysInternetCity 311
8/10/20261448 W WALTON STWest Town1Completed4 daysInternetCity 311
8/10/20261945 W THOMAS STWest Town1Completed14 daysInternetCity 311
8/10/20265754 W 59TH STGarfield Ridge13Completed8 daysMobile DeviceCity 311
8/10/20266553 S WINCHESTER AVEWest Englewood16Completed2 daysPhone CallCity 311
8/10/202611308 S TROY STMount Greenwood19Completed4 daysInternetCity 311
8/10/2026947 W 87TH STAuburn Gresham21Completed10 daysPhone CallCity 311
8/10/20266012 S AUSTIN AVEClearing13Completed14 daysInternetCity 311
8/10/20266737 S KOLIN AVEWest Lawn23Completed14 daysPhone CallCity 311
8/10/20263025 W SHERWIN AVEWest Ridge50Completed8 daysPhone CallCity 311
8/10/20265349 W GRACE STPortage Park30Completed9 daysAlderman's OfficeCity 311
8/10/20265648 S MAPLEWOOD AVEGage Park15Completed11 daysAlderman's OfficeCity 311
8/10/20265236 S WOODLAWN AVEHyde Park5Completed9 daysPhone CallCity 311
8/10/20261635 S CHRISTIANA AVENorth Lawndale24Completed9 daysPhone CallCity 311
8/10/20265639 S FRANCISCO AVEGage Park15Completed7 daysPhone CallCity 311
8/10/20262243 S KOSTNER AVENorth Lawndale22Completed3 daysPhone CallCity 311
8/10/20264403 W 63RD STWest Lawn13Completed8 daysPhone CallCity 311
8/10/20265825 S KILBOURN AVEWest Elsdon13Completed14 daysAlderman's OfficeCity 311
8/10/2026916 W ARMITAGE AVELincoln Park43Completed15 daysInternetCity 311
8/10/20265810 S KILBOURN AVEWest Elsdon13Completed14 daysAlderman's OfficeCity 311
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